A cyclic hydrocarbon with the molecular formula C6H6 is-

Correct option is B

The correct answer is (b) Benzene.
· Benzene is a cyclic hydrocarbon with the molecular formula C6H6.
· It consists of six carbon atoms arranged in a ring, with alternating single and double bonds between them.
· This structure is known as an aromatic ring, and benzene is the simplest aromatic hydrocarbon.
Other Options:
· Methane: Methane has the molecular formula CH4, not C6H6.
· Naphthalene: Naphthalene has the molecular formula C10H8 and consists of two fused benzene rings.
· Cyclopentane: Cyclopentane has the molecular formula C5H10 and is a five-membered ring, not C6H6.